Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
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Superfamily Ephemeroidea

Adult Mayfly - SK - Hexagenia - female Unknown Yellow-Green Bug - Hexagenia limbata Mayfly - Ephemera simulans - male - Hexagenia Mayfly - Hexagenia bilineata Always see these at the lake. Don't know what they are. They can be lighter color and different sizes. This is a large dark one. - Hexagenia bilineata Pennsylvania Mayfly for ID - Ephemera varia Hexagenia bilineata

Ephemeridae: Hexagenia? - Pentagenia vittigera Palingeniidae: Pentagenia vittigera? - Pentagenia vittigera Big eye looks similar to dragon fly - Pentagenia vittigera Unknow dragnofly or wasp ? - Pentagenia vittigera Unknown Mayfly - Pentagenia vittigera Mayfly - Pentagenia vittigera large mayfly - Pentagenia vittigera mayfly - Pentagenia vittigera

White Mayfly -  Maccaffertium? - Ephoron album - female Mayfly (in August)  - Ephoron leukon - female Adult Male Tortopus sp. (Ephemeroptera:Polymitarcyidae) - Tortopus - male Unknown Mayfly - Tortopsis Polymitarcyidae: Ephoron? - Ephoron Ephoron Leukon?  - Ephoron leukon Polymitarcyidae (Pale Burrower Mayfly) - Tortopsis primus - female egg laying dying mayfly - Tortopsis primus - female